From c0e7af54717e9df9e75bdee5194fb59b728c663e Mon Sep 17 00:00:00 2001
From: chinosk <chinosk@noreply.localhost>
Date: Sat, 2 May 2026 14:28:41 +0800
Subject: [PATCH] 111

---
 metamogu.js | 124 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 124 insertions(+)
 create mode 100644 metamogu.js

diff --git a/metamogu.js b/metamogu.js
new file mode 100644
index 0000000..b6e9d58
--- /dev/null
+++ b/metamogu.js
@@ -0,0 +1,124 @@
+// ==UserScript==
+// @name         Metamogu 补货自动检测 (Fetch 终极版)
+// @namespace    http://tampermonkey.net/
+// @version      3.0
+// @description  使用原生 Fetch 突破拦截，响应非 500 时直接替换页面或重定向，避免重复访问消耗兑换码。
+// @author       Gemini
+// @match        https://metamogu.sa-vrc-media.com/redeem-code/redirect*
+// @grant        GM_notification
+// @run-at       document-idle
+// ==/UserScript==
+
+(function() {
+    'use strict';
+
+    let checkCount = 0;
+    let countdownTimer = null;
+
+    // 1. 创建右下角浮窗 UI
+    const ui = document.createElement('div');
+    ui.style.cssText = `
+        position: fixed;
+        bottom: 20px;
+        right: 20px;
+        padding: 15px 20px;
+        background-color: rgba(0, 0, 0, 0.75);
+        color: #00FF00;
+        font-family: 'Microsoft YaHei', sans-serif;
+        font-size: 14px;
+        border-radius: 8px;
+        z-index: 2147483647;
+        box-shadow: 0 4px 10px rgba(0,0,0,0.3);
+        pointer-events: none;
+        backdrop-filter: blur(4px);
+        line-height: 1.6;
+        transition: all 0.3s ease;
+    `;
+    if (document.body) {
+        document.body.appendChild(ui);
+    } else {
+        document.documentElement.appendChild(ui);
+    }
+
+    // 更新浮窗内容
+    function updateUI(text, color = "#00FF00") {
+        ui.style.color = color;
+        ui.innerHTML = text;
+    }
+
+    // 2. 核心检测逻辑 (原生 async/await fetch)
+    async function doCheck() {
+        checkCount++;
+        updateUI(`🔄 第 <b>${checkCount}</b> 次检测中...`, "#FFD700");
+
+        try {
+            // 使用原生 fetch，完美伪装成正常的页面加载请求
+            const response = await fetch(window.location.href, {
+                method: "GET",
+                cache: "no-store", // 强制不缓存，确保获取最新状态
+                headers: {
+                    // 模拟常见的浏览器请求头，避免被 WAF 拦截
+                    "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8"
+                }
+            });
+
+            const status = response.status;
+            // 如果发生了 301/302 重定向，fetch 默认会跟随，response.redirected 会变为 true
+            const finalUrl = response.url;
+            const isRedirected = response.redirected;
+
+            if (status === 500) {
+                // 缺货状态：随机 5~30 秒倒计时
+                const delaySec = Math.floor(Math.random() * (30 - 5 + 1)) + 5;
+                let currentSec = delaySec;
+
+                updateUI(`❌ 状态: 缺货中 (500)<br>⏱️ 倒计时: <b>${currentSec}</b> 秒后检测<br>📊 累计检测: <b>${checkCount}</b> 次`, "#FF4500");
+                document.title = `[等待 ${currentSec}s] 监控中...`;
+
+                countdownTimer = setInterval(() => {
+                    currentSec--;
+                    if (currentSec <= 0) {
+                        clearInterval(countdownTimer);
+                        doCheck();
+                    } else {
+                        updateUI(`❌ 状态: 缺货中 (500)<br>⏱️ 倒计时: <b>${currentSec}</b> 秒后检测<br>📊 累计检测: <b>${checkCount}</b> 次`, "#FF4500");
+                        document.title = `[等待 ${currentSec}s] 监控中...`;
+                    }
+                }, 1000);
+
+            } else {
+                // 已补货！状态不再是 500
+                updateUI(`✅ 状态: <b>${status}</b><br>🎉 已补货，正在处理...<br>📊 累计检测: <b>${checkCount}</b> 次`, "#00FF00");
+                document.title = `[已补货！] 状态 ${status}`;
+
+                GM_notification({
+                    title: "🌟 Metamogu 补货啦！",
+                    text: `检测到状态变化，已为您渲染最新页面！`,
+                    timeout: 10000,
+                    highlight: true,
+                    onclick: () => window.focus()
+                });
+
+                // 处理 302 重定向或 200 成功
+                if (isRedirected || finalUrl !== window.location.href) {
+                    console.log("检测到重定向，正在跳转至:", finalUrl);
+                    window.location.replace(finalUrl); // 使用 replace 避免产生多余的历史记录
+                } else {
+                    console.log("状态 200，正在替换页面 DOM...");
+                    const htmlText = await response.text();
+                    document.open();
+                    document.write(htmlText);
+                    document.close();
+                }
+            }
+        } catch (error) {
+            // 请求出错处理 (例如断网或跨域异常)
+            console.error("Fetch 请求出错:", error);
+            updateUI(`⚠️ 网络请求异常<br>⏱️ 10秒后重试...<br>📊 累计检测: <b>${checkCount}</b> 次`, "#FF6347");
+            setTimeout(doCheck, 10000);
+        }
+    }
+
+    // 启动检测
+    doCheck();
+})();
\ No newline at end of file